The Jefferson County Inmate Population
The Jefferson County inmate population is centered on the Jefferson County Jail, also described by the sheriff roster as the Jefferson County, Kansas Sheriff's Office Detention Center. The jail receives arrested people for booking and incarceration. It holds pre-trial detainees, post-conviction county inmates, people awaiting transport to the Kansas Department of Corrections, inmates from nearby counties, and ICE detainees when they are housed locally. No separate city jail, state prison, BOP prison, or dedicated ICE detention center was located inside Jefferson County in the official lists reviewed for the research file.
The count changes for practical reasons. New arrests add people after booking. Bond, court release, sentence credits, transfers, and short-term holds move people out. A county jail count is not the same as a state prison count. Once a sentenced person enters KDOC custody, the county roster is no longer the main lookup source. The sheriff roster is best for local jail custody, while KASPER, BOP, and ICE tools cover other parts of the wider custody map.
Jefferson County Inmate Population Statistics
The best local figures are point-in-time figures, not a full official average daily population report. The current inmate roster showed 11 current inmates when inspected on June 13, 2026. The 48-hour release roster showed 10 release entries in the opened page during that same inspection. Those two figures should not be added together. One is current custody. The other is a short release window.
| Measure | Figure | Source / Year |
|---|---|---|
| Current Jefferson County roster count | 11 current inmates | Sheriff's current roster, inspected 2026 |
| 48-hour release entries | 10 entries in opened page | Sheriff's release roster, inspected 2026 |
| Historical correctional population | 29 at Jefferson Co. Jail | Prison Policy Initiative Census table, 2013 |
| Rated jail capacity | Not located in official county sources | Sheriff and county sources checked 2026 |
| County area | 568 square miles | Sheriff homepage |
Jefferson County Inmate Population Trends
Jefferson County does not publish a recent multi-year jail average in the official materials reviewed. That limits what can be said with confidence. A historical correctional-population table lists 29 people at Jefferson Co. Jail on December 31, 2013. The public roster count inspected on June 13, 2026 listed 11 current inmates. Those are two different kinds of measures, so they show context rather than a clean trend line.
State-level sources such as Vera's Incarceration Trends and the Prison Policy Initiative Kansas profile are useful for Kansas context, but they do not replace Jefferson County jail data. Smaller counties can see large swings from a small number of arrests, bond holds, or transport delays. That is why the current roster is best read as a daily custody snapshot instead of a population report.
| Date | Population / Count | Notes |
|---|---|---|
| 12/31/2013 | 29 | PPI correctional-population table lists Jefferson Co. Jail as a local facility. |
| 06/13/2026 | 11 | Sheriff's current roster count at inspection. |
| 2024-2026 ADP | Not published in reviewed sources | No official county ADP report was captured. |
Who Makes Up the Jefferson County Inmate Population
The official jail page gives custody categories, but it does not publish a full demographic report. Public roster cards show age, booking data, charge text, bond, and a photo. A full profile adds fields such as gender, race, arresting agency, booking number, booking date, and VINELink. The site did not show full date of birth, housing unit, height, weight, eye color, or a countywide race and sex summary.
The custody categories are still important even without a full demographic table. A current roster count can include a person arrested by the Sheriff's Office, a person held for another Kansas county, a person waiting for KDOC transport, or an ICE detainee housed under local jail rules. Those groups may share the same building but have different court, release, and locator paths.
- Pre-trial and sentenced local custody - The jail houses people before trial and post-conviction inmates serving local sentences.
- KDOC transfer custody - Some people remain at the jail while awaiting transport to the Kansas Department of Corrections.
- Other agencies - The jail page says inmates from surrounding counties and ICE detainees may be housed there.
- Male and female housing - The jail page says male and female inmates are housed separately at all times.
Laws for Jefferson County Inmate Records
Kansas open-records law is the main public-access framework for jail and booking records. Jefferson County's open-records page says a county agency must respond within three business days by providing the record, stating when it will be provided, or explaining why it cannot be provided. It also says KORA does not require a county agency to create new records, analyze records, interpret records, or prepare custom reports.
The same access rules have limits. Juvenile records, sealed cases, expunged records, active investigation material, and records closed by a specific Kansas law may not be released in the same way as an ordinary booking record. District court records are also handled by the court, not by a county open-records officer. For Jefferson County court case files, the better path is Kansas Case Search or the Clerk of the District Court.
Key Statutes:
K.S.A. 45-216 states Kansas public policy that public records are open unless closed by law.
K.S.A. 45-218 is the request, response, and refusal provision that Jefferson County summarizes in its KORA guidance.
K.S.A. 19-811 supports the sheriff's role as the official in charge of the county jail.
K.S.A. 19-1930 addresses prisoners committed by federal, city, or KDOC authority and safe custody until lawful discharge.
Jefferson County Jail Capacity Limits
No rated capacity or current average daily population was located in the official Jefferson County Sheriff or county sources reviewed on June 13, 2026. No official source in the research file reported a new jail construction project, closure, consent decree, active DOJ investigation, death-in-custody report, or capacity litigation for Jefferson County in the recent research window.
That absence should not be read as proof that no capacity issue can exist. It means the reviewed official sources did not publish those facts. A KORA request may be needed for existing non-online records such as jail reports, population logs, or historical booking totals, subject to lawful exemptions and the county's response process.
Jefferson County and State Prison Custody
The KDOC KASPER locator covers people and cases associated with KDOC-funded or KDOC-operated programs. It is not a complete criminal history, and KDOC says it is updated each working day. That matters for the Jefferson County inmate population because a jail profile may disappear from the county roster after a sentenced person is moved to KDOC custody. At that point, KASPER is the better tool than the county roster.
No KDOC prison was located in Jefferson County in the adult facility list. Jefferson County readers should treat state prison custody as a separate statewide system. KDOC visiting, banking, mail, and custody rules do not replace Jefferson County Jail rules before transfer.
- Pre-trial
- Custody before the court has entered a final case outcome.
- Detainer
- A request from another agency to hold a person or notify that agency before release.
- KDOC
- The Kansas Department of Corrections, which runs the state sentenced-custody locator.
- VINELink
- A victim-notification system linked from a sampled Jefferson County inmate profile.
Search Jefferson County Inmate Population
The official Jefferson County inmate roster landing page gives two lookup paths: current inmates and 48-hour releases. The roster is public and free. No login was observed during research. The current list uses name search, show-all, list filters, and date sorting. Full profiles show booking and bond details, but the profile itself warns that charges and bail amounts can change after court appearances.
The roster landing page is shown in the sheriff's public interface. The official Jefferson County roster page links readers to current custody and 48-hour release lists.
The roster landing screenshot matters because it shows the split between current custody and recent release records before a search begins.
- Open the sheriff roster landing page and accept the posted disclaimer if it appears.
- Choose Current Inmates for present jail custody or 48 Hour Release for recent releases.
- Use Search By Name when looking for a specific person, or Show All to reset the list.
- Open the profile for booking number, arresting agency, charges, bond, mugshot, and VINELink.
- If the person is not found, call the jail, check Kansas Case Search, then use KASPER, BOP, or ICE as the custody facts require.
Jefferson County Current Inmate Lookup
The current roster inspected in June 2026 displayed roster cards with mugshot, name, booking number, age, booking date, charges, bond, and a profile link. Search fields were simple, which helps when the exact spelling is known but leaves fewer advanced filters. The roster does not state a refresh interval. For bond or case-number decisions, the profile directs bond companies and people posting bail to contact detention staff.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Search By Name | Text | Unspecified | Visible on current and released rosters. |
| Name | Sort/filter link | Optional | Sorts or lists by name. |
| Date | Sort/filter link | Optional | Sorts by booking or release date, depending on page. |
| Current | Filter link | Optional | Opens the current-inmate roster. |
| Released | Filter link | Optional | Opens the 48-hour release roster. |
| Show All | Button/link | Optional | Clears a name search. |
Jefferson County Inmate Record Fields
A Jefferson County inmate profile is a booking record, not a full criminal history. The sample profile showed a photo, VINELink icon, booking number, age, gender, race, arresting agency, booking date, charge text, and bond. It did not show full date of birth, address, housing location, next court date, judge, warrant number, projected release date, or per-charge bond type.
| Field | What It Shows |
|---|---|
| Booking Number | Jefferson County booking identifier, observed as a B plus digits. |
| Booking Date | Date and time the person entered the jail roster. |
| Charges | Booking charge text and statute references where available. |
| Bond | Public amount or status, with a warning that it may change. |
| Mugshot | Public booking photo while the profile remains visible. |
| VINELink | Notification link or icon for victim-notification registration. |
Jefferson County Jail vs State Prison
County jail and state prison searches answer different questions. The Jefferson County roster covers local jail custody, including pre-trial cases, short sentences, and people awaiting transport. KASPER covers KDOC custody and supervision data. BOP covers federal sentenced custody from 1982 to present, while ICE ODLS covers immigration detention searches.
| County Jail | State Prison | |
|---|---|---|
| Who Is Held | Pre-trial detainees, local sentences, transfer holds, ICE when housed locally | Sentenced people in KDOC custody or funded programs |
| Run By | Jefferson County Sheriff's Office | Kansas Department of Corrections |
| Where to Look | Jefferson County jail roster | KDOC KASPER |
| Update Note | No official refresh interval located | Updated each working day, per KDOC FAQ |
State Federal and ICE Search
Federal custody is not searched through the county jail roster. The BOP inmate locator allows number and name searches for federal inmates. It does not publish booking mugshots in the same way a county roster can. ICE status is searched through ODLS. Since the local jail page says Jefferson County houses ICE detainees, an immigration hold can overlap with local jail custody, but ODLS remains the official immigration locator.
Kansas criminal-history searches are separate from both jail and court portals. The Kansas Criminal History Record Search is a KBI name-based record check with a posted Kansas.gov purchase price. That system is used for criminal-history checks, not a live jail population count.
| System | Use It For | Not For |
|---|---|---|
| Jefferson County roster | Current county jail custody and 48-hour releases | Complete criminal history or state prison custody |
| KDOC KASPER | State custody, status, and supervised population data | County booking photos or fresh jail intake |
| BOP locator | Federal sentenced inmate searches | Local Kansas jail records |
| ICE ODLS | Immigration detention location checks | County bond or court-charge confirmation |
Jefferson County Detention Facility
Only one detention facility was resolved for Jefferson County from the official facility map. It is the primary county jail in Oskaloosa. The jail handles local booking, classification, video visitation, mail, money, current roster records, and 48-hour release records.
- Jefferson County Jail / Jefferson County Sheriff's Office Detention Center - county jail for pre-trial detainees, local sentenced inmates, people awaiting KDOC transport, surrounding-county inmates, and ICE detainees when housed locally.
Jefferson County Inmate Population FAQ
How big is the Jefferson County inmate population?
The public current roster showed 11 inmates when inspected on June 13, 2026. A historical correctional-population table listed 29 people at Jefferson Co. Jail on December 31, 2013. The county did not publish a current rated capacity or average daily population in the official sources reviewed.
How do I search the Jefferson County inmate population?
Start with the sheriff's inmate roster landing page. Use Current Inmates for people now held at the detention center and 48 Hour Release for recent releases. If the person is not listed, call the jail, then check court, KDOC, BOP, or ICE systems based on custody type.
Can a bond amount on the roster change?
Yes. The full profile warning says charges and bail amounts may change after court appearances and may not be current. The sheriff's bond scam alert says legitimate bond must be handled physically at the Sheriff's Office, not through a phone-payment request.
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